In this thesis I dealt zoology, environmental and hunting features of mongoose, as well as settling the small Indian mongoose (Herpestes auropunctatus) in Croatia. Mongooses were previously classified among the members of the family of real civet, Viverridae, however recently and today accepted taxonomic opinion is that they belong to a separate and distinct family of mongoose, Herpestidae, which includes 33 species and 14 genera. A small Indian mongoose is the oldest example of immigration invasive species in Croatia. Although at first glance immigration mongoose on the Adriatic islands seemed like the perfect solution to combating snake, it turned out to be wrong because the mongoose drastically disturb the natural balance and instead of useful animals become pests. Today, the small Indian mongoose was included on the list of 100 most dangerous invasive species in the world. Under the provisions of the Hunting Act, Mongoose in the Republic of Croatia has the status of small, furry wildlife, and it is not prescribed periods, except for females when pregnant or high water while nursing pups.